Building block



The building block of this Design is combined with other building blocks to make various toys. The article of this Design is made of plastics.

FIG. 1 is a perspective view of the building block of this Design;

FIG. 2 is a front view thereof;

FIG. 3 is a right side view thereof;

FIG. 4 is a left side view thereof;

FIG. 5 is a sectional view along line A—A of FIG. 3;

FIG. 6 is a sectional view along line B—B of FIG. 2;

FIG. 7 is a view showing how the building block is used; and,

FIG. 8 is a sectional view along line X—X of FIG. 7 and showing how the building block is used.

The back, plan and bottom views are omitted because they are identical to the front view. 

The ornamental design for building block, as shown and described. 